Moldboard for plows



C. GLEICHE.

MOLDBOARD FOR PLOWS.

APPLICATION FILED OCT- 6. 1914.

Patented July 13, 192i Jbvevivr:

UNITED STATES PATENT cl rics;

CARL GIlEICI-IE, OF BERLIN, GERMANY, ASSIGNOR TO STOCK I'IIO'IORPFLUG- GESELL- SCHAFT MIT IBESCHRANKTER HAFTUNG, 0F BERLIN, GERMANY, A CORPORATION OF GERMANY.

MOLDBOARD FOR FLOWS.

Specification of Letters Patent.

Application filed October 6, 1914. Serial No. 865,315.

To all whom it may concern:

Be it known that I, CARL GLEIOHE, a citizen of the German Empire, and resident of Berlin, Germany, have invented certain new and useful Improvements in Moldboards tor Plows, of which the following is a specilication.

My invention relates to mold boards for plows of the skeleton type, which, as is well known, are generally employed in plowing clayey or like heavy soil so as to reduce as far as possible the frictional surface in turning over the soil forming the furrow slice. Such mold boards comprise several superimposed strips suitably spaced apart, the distance between the strips being for instance equal to the width of a strip. WVhen such mold boards are used, the iurrow slice is turned over in as smooth manner as with a solid mold board, as clay or the like ground has a strong inner cohesion and therefore does not penetrate during plowing into the intermediate spaces between the strips constituting the mold board.

The object of my invention is to connect the separate members which comprise the skeleton mold board to the supporting body in a rigid and simple manner without block ing the spaces or perforations of the mold board.

in the accompanying drawings which show one construction of attachment device embodying my present invention, Figure l is a rear elevation, Fig. 2 a side elevation, Fig. 3 a plan of the complete plow share and Fig. 4 is a rear elevation of another itorm of my invention.

The frog 6 supporting the plow share is provided in the well known manner with attachment members a, the share 0 being connected to the forward end of the frog 7). At the same side of the frog and above the share 0 is disposed the skeleton mold board comprising an upright front portion 0? and three substantially parallel strip-like members e, spaced apart one above the other. The front portion d of the mold board is connected to the frog 7) in the well known manner its rear end being supported on the frog Z) in the following manner Through a sleeve f provided in the usual manner at the rear side of the frog Z) for securing the mold board stay, passes the central stay g, which is secured to the frog 6 by means of two nuts 7t and 2'. The nut it is screwed on the outer free end of the stay g, while the nut i engages a bridge is supported on the sleeve 7' and provided with a corresponding aperture to accommodate the stay g. The other end of the stay 9 is connected to the central portion 6 of the mold board by means of a screw or the like. The bridge 79 is provided at its upper and lower ends with perforations through which pass the upper and lower stays m and n, which are connected to the bridge by nuts 0 or p, while their other ends are screwed to the upper or lower portions 6 of the mold board.

It will be seen from the foregoing that the portions 6 of the mold board are connected in a firm and reliable manner to the frog 7) by the individual stays g, m and 7%, without the intermediate spaces between the strips of the mold board being blocked.

The attachment device may be constructed without departing from my invention, by connecting the individual stays m, a directly to the stay g, which is secured to the frog Z), in a radial formation, the bridge 70 being then done away with. This modification is shown in Fig. at.

It will be understood that the method of securing the mold board above described has the substantial advantage that a frog of the usual construction can be used without any alterations therein. Consequently the device can be at once fitted to existing frogs, whereby it becomes possible to use at will either solid or skeleton mold boards.

The arrangement of nuts h, c, 0 and 19, enables the individual portions e, of the mold board to be adjusted within certain limits.

in the construction illustrated, the frog 2) is provided in the known manner with a further support 9, for mounting a subsoil Patented July 13, 1920..

loosening device, and it will be seen that this I support is in no way interfered with by the mold board attachment above described.

I claim 1. An attachment for plows, comprising, as a self-contained unit, a frog or standard having means for securing it detachably to a plow-beam, a share and a mold-board secured to said frog or standard, said mold-board including rearwardly-extending superposed spaced strips, and said t'rog or standard having an eye or sleeve at a level about half-way of its height, individual braces each having one end secured to a different strip of the mold-board detachably, and securing means, cooperating with said eye or sleeve, for eifecting a connection of the other brace ends With said frog or standard. i 2. An attachment for plows, comprising, as a self-contained unit, a frog or standard having means for securing it-detachably to l a plow-beam, and also provided, With a sleeve, a share and a mold-board secured to said frog or standard, said mold-board including rearWardly extending superposed spaced strips, individual braces each having one end secured to a difierent strip of the mold-board, one of said braces extending Witnesses:

PAUL THIELE, HERMANN KEIM. 

